You will not be able to lose 200grams from your setup. R1 brakes get down to the 270g range. Maybe -30g per wheel with the alu rotors as the stock formulas are pretty light for steel, you'd be at 480g. Estimates only...

The new XX with the revised bleed port location and bladder don't have the same "requires constant bleeding" issues the old ones had. I went with XX so I could have a clean setup with my reverb remote, but Formula R1s are hard to beat if that isn't a concern.

..... actually as I sit and type this, I have a pair of 2012 SRAM XX brakeset less than 1.0 m away from me that I picked up from the post office depot this morning - I will weigh and post this evening.

A quick look it appears they have Ti bolt t hold the 2 callper halves together, will verify this with magnet later.

F 200 g calliper, lever - no clampR 178 g calliper, lever - no clamp

haven't measured the hose length but they are as out of the box, natrually I will be trimming the hose so expect maybe 5 g less in total?

Last edited by 02GF74 on Sat Nov 10, 2012 12:43 pm, edited 1 time in total.

Done one ride, maybe 10 miles due to being busy, else either being very cold or very very very wet and muddy.

They do what they are supposed to do i.e. they stop me - so as good as any other disc brakes I have - not had any of the problems like pads dragging or having to rebleed after each ride, ok, after one ride - lever still is firm. I did trim the hoses and as usual with this type of brake, it tool a long time but no probs once done.

The only minor criticism I have is the brake lever isn't quite in the ideal position for me - I think that is because the lever pivot is too close to the bar so the angle of the lever is slightlty wrong for me.

I think I'll be replacing by formula R1 that arrived in post this monring, since those work out 50 g lighter, the lever is better positioned and they will allow my rockshox x-loc to sit nearer the grips - downside is I will not be able to use my lovely Hope SAW discs due to clearance between calliper and the hollow rivet.

overall verdict is (note these are the latest model - the problems you read about are for the earlier models - the difference is the posiiton of the bleed screw on the lever and callipers not needed CPS washers)

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